CN210052765U - Buffering foam for power battery - Google Patents
Buffering foam for power battery Download PDFInfo
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- CN210052765U CN210052765U CN201920451933.0U CN201920451933U CN210052765U CN 210052765 U CN210052765 U CN 210052765U CN 201920451933 U CN201920451933 U CN 201920451933U CN 210052765 U CN210052765 U CN 210052765U
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- foam
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- base material
- silica gel
- buffering
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
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Abstract
The utility model provides a power battery is with buffering bubble cotton locates between each monomer electricity core, including upper and lower two-layer substrate to and by liquid silica gel foaming shaping in two-layer silica gel bubble cotton layer between the substrate, the substrate is the fine layer of glass, polytetrafluoroethylene film or PI film one kind or two kinds. When the single battery cells are abnormal, the base material directly contacted with the single battery cells has good heat insulation, high temperature resistance and flame retardance, so that heat and combustion can be delayed to diffuse among the single battery cells, and time is won for passengers to escape; when the single battery cell expands, the buffer foam can provide buffer space for the deformation of the single battery cell; the base material can also enhance the strength and toughness of the buffering foam, the tearing resistance is strong, the buffering foam cannot be damaged by extrusion or impact after long-term use, the silica gel foam layer is directly foamed and formed on the surface of the base material, the adhesion is good, the layering is not easy to happen after long-term use, and the requirement of a power battery on the service life is met.
Description
Technical Field
The utility model relates to a buffer material technical field for the power battery specifically indicates a buffering is cotton with bubble between power battery's monomer electricity core.
Background
The inside power battery that is formed by a plurality of monomer electricity core combinations usually, long-term the back of using, monomer electricity core is probably to produce the inflation deformation, can cause the extrusion collision between monomer electricity core, in addition, when overheated or even burning problem appears in certain monomer electricity core, can rapidly arrive other electric cores, because diffusion rate is very fast, easily causes the serious accident for the passenger often has no time to flee.
SUMMERY OF THE UTILITY MODEL
The utility model aims at providing a buffering bubble cotton that is durable, can protect electric core and can delay power battery accident diffusion.
In order to achieve the above object, the utility model adopts the following technical scheme:
the utility model provides a buffering bubble is cotton for power battery, locates between each monomer electricity core, includes upper and lower two-layer substrate to and by liquid silica gel foaming shaping in two-layer the cotton layer of silica gel bubble between the substrate, the substrate is the fine layer of glass, polytetrafluoroethylene film or PI (polyimide) film one kind or two kinds.
In a preferred embodiment, the thickness of the silica gel foam layer is 0.8-6 mm.
In a preferred embodiment, the gram weight of the glass fiber layer is 40-100 g/m
2The thickness is 0.5 to 1.5 mm.
In a preferred embodiment, the polytetrafluoroethylene film has a thickness of 0.05 to 0.2 mm.
In a preferred embodiment, the thickness of the PI film is 0.05-0.2 mm.
The beneficial effect of this scheme is: the buffer foam is arranged among the monomer battery cores, when the monomer battery cores are abnormal, the base material which is directly contacted with the monomer battery cores and is positioned on the outermost side surface can delay the diffusion of heat and combustion among the monomer battery cores due to good heat insulation, high temperature resistance and flame retardance, and thus, time is won for passengers to escape; when the single battery cell expands, the buffer foam can provide buffer space for the deformation of the single battery cell; the base material can also enhance the strength and toughness of the buffering foam, the tearing resistance is strong, the buffering foam cannot be damaged by extrusion or impact after long-term use, the silica gel foam layer is directly foamed and formed on the surface of the base material, the adhesion is good, the layering is not easy to happen after long-term use, and the requirement of a power battery on the service life is met.
Drawings
The present invention will be described in further detail with reference to the accompanying drawings and specific embodiments.
Fig. 1 is a schematic structural diagram of the buffer foam in the embodiment.
Detailed Description
The invention is further explained below with reference to the drawings:
referring to the buffering foam shown in fig. 1, the buffering foam is arranged between the individual electric cores and comprises an upper layer of base material 1 and a lower layer of base material 1, and a silica gel foam layer 2 formed between the base materials 1 in a foaming manner through liquid silica gel, wherein the base material 1 is one or two of a glass fiber layer, a polytetrafluoroethylene film and a PI film. The preferable gram weight of the glass fiber layer is 40-100 g/m
2The thickness is 0.5 to 1.5 mm. The preferable thickness of the polytetrafluoroethylene film is 0.05-0.2 mm. The preferable thickness of the PI film is 0.05-0.2 mm. The buffering foam is arranged among the monomer battery cores, when the monomer battery cores are abnormal, the base material 1 which is directly contacted with the monomer battery cores and is positioned on the outermost side surface can delay the diffusion of heat and combustion among the monomer battery cores due to good heat insulation, high temperature resistance and flame retardance, and strive for time for passengers to escape; when the single battery cell expands, the buffer foam can provide buffer space for the deformation of the single battery cell; the base material 1 can also enhance the strength and toughness of the buffering foam, the tearing resistance is strong, the buffering foam cannot be damaged due to extrusion or impact after long-term use, the silica gel foam layer 2 is directly formed on the surface of the base material 1 in a foaming manner, the adhesion is good, the layering is not easy to happen after long-term use, and the requirement of a power battery on the service life is met. Because the two sides of the silica gel foam layer 2 are soakedAll are provided with base materials 1 which are tidy and do not fall scraps when being cut.
The above description is not intended to limit the technical scope of the present invention, and any modifications, equivalent changes and modifications made to the above embodiments according to the technical spirit of the present invention are all within the scope of the technical solution of the present invention.
Claims (5)
1. The utility model provides a power battery is with buffering bubble cotton which characterized in that: the buffer foam is arranged between the monomer electric cores and comprises an upper layer of base material and a lower layer of base material, and a silica gel foam layer formed between the two layers of base material in a foaming mode through liquid silica gel, wherein the base material is one or two of a glass fiber layer, a polytetrafluoroethylene film or a PI film.
2. The buffering foam for the power battery as claimed in claim 1, wherein: the thickness of the silica gel foam layer is 0.8-6 mm.
3. The buffering foam for the power battery as claimed in claim 2, wherein: the gram weight of the glass fiber layer is 40-100 g/m
2The thickness is 0.5 to 1.5 mm.
4. The buffering foam for the power battery as claimed in claim 2, wherein: the thickness of the polytetrafluoroethylene film is 0.05-0.2 mm.
5. The buffering foam for the power battery as claimed in claim 2, wherein: the thickness of the PI film is 0.05-0.2 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920451933.0U CN210052765U (en) | 2019-04-03 | 2019-04-03 | Buffering foam for power battery |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920451933.0U CN210052765U (en) | 2019-04-03 | 2019-04-03 | Buffering foam for power battery |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210052765U true CN210052765U (en) | 2020-02-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920451933.0U Active CN210052765U (en) | 2019-04-03 | 2019-04-03 | Buffering foam for power battery |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210052765U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113540657A (en) * | 2020-04-15 | 2021-10-22 | 上海汽车集团股份有限公司 | Method and device for thermal runaway impact protection of high-efficiency power battery |
-
2019
- 2019-04-03 CN CN201920451933.0U patent/CN210052765U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113540657A (en) * | 2020-04-15 | 2021-10-22 | 上海汽车集团股份有限公司 | Method and device for thermal runaway impact protection of high-efficiency power battery |
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